Car-brake



(No Model.)

H. M. GLINES.

GAR BRAKE.

P nted Au '7, 1883.

INVENTOR:

ATTORNEYS.

N. PEYER'S. Phomumognwm. Wahinflun. ac

NITED STATES PATENT OFFICE.

HUMPHREY M. G-LINES, OF EAST BOSTON, MASSACHUSETTS.

SCAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 282,714, dated August7, 1883.

Application filed June 1, 1883.

To aZZ whom, it ntay concern:

Be it known that I, HUMPHREY M. GLINEs, of East Boston, in the county ofSuffolk and State of Massachusetts, have invented a new and ImprovedCar-Brake, of which the following is a full, clear, and exactdescription.

The invention consists in a brake in which the brake-bars are connectedby a rod secured to one bar and attached to the lower end of an arm of ashaft on the other bar, which shaft has an upwardly-projecting armconnected to the brake-shaft. The brake-shaft is provided with anapertured disk and with a sliding collar having a pin adapted to passthrough the apertures in the disk, whereby by passing the pin throughthe apertures in the said disk the brake-shaft may be locked in thedesired position, as will be fully described and set forth hereinafter.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a longitudinal sectional elevation of a tender provided withmy improved brake. Fig. 2 is a perspective view of the brakeshoes,

the bars connecting the same, and the levers for operating them. Fig. 3is a detail perspective view of the sliding collar on the brakeshaft.Fig. 4 is a plan View of the wheel mounted on the brake-shaft.

Two brake-shoes, A A, of the usual construction, are attached to theends of the bars B B. To the middle of that bar B toward the end of thecar or the outer end of the brake a rod, 0, is fastened, the other endof which is pivoted to the end of a downwardly-projecting arm, D, of ahorizontal shaft, E, journaled to turn or rock on the inner surface ofthe inner brakebar, B, which shaft E is provided with a longerupwardly-projecting arm,'F, to the free end of which arod, G, isfastened, the other endof which is fastened to a chain, H, attached tothe lower end of a vertical brake-shaft, J, suitably 5 journaled in thebottom of the tender or car.

The brake-bars B are suspended from a frame, K, in the usual manner. Thearms F and D, which project in opposite directions from'the shaft E, donot form one continuous line, but are so inclined that they form anangle, as shown in Fig. 1.

The brake-shaft J is journaled at its upper (N0 model.)

| end in a bar, .L, projecting from the end of the tank-leg M. A disk,N, provided with a ring of apertures, a, is rigidly mounted on thebrakeshaft J. A collar, 0, is loosely mounted on the brake-shaft abovethe disk N, which collar is provided with an arm, I, terminating in adownwardly-projecting pin, Q, the free end of which is beveled, whichpin is adapted to be passed through the apertures a in the disk N. Alever, T, is pivoted to the outer end of the arm L in such a manner thatthe saidlever can press the pin Q upward and out of the aperture inthedisk N. Apin or bolt, S, is passed through an aperture, a, of thedisk N.

If the chain H is wound on the shaft J, by rotating the same theupperend of the arm F will be drawn in the direction of the arrow a, therebypressing the inner brake-shoes against the rims of the wheels. If theupper end of the arm F moves in the direction of the arrow a, the lowerend of thearm D will be moved in the inverse direction and the outerbrakeshoes will be pressed against the wheels. A very great leverage isobtained by means of the arms F D and the angle formed by the same,

i and the brake-shoes can be pressed against the rims of the wheels. Ifthe brake-shaft is turned, the beveled end of the pin Q on the collar 0strikes against the side of the bar L, and is raised to pass over thesame every time the disk makes a revolution; but if the tension of thechain revolves the shaft in the inverse direction, the end of the pin Qstrikes arm' L and prevents theturning of the shaft, andthus locks thesame in place. If the brake is to be released, the outer end of thelever F is pressed downward, whereby the pin Q and the collar 0, towhich it is fastened, will be raised sufficiently to clear the bar L andthe shaft can make one revolution, when the pinQ will again strike thearm L if the handle end of the lever T is not kept depressed. If it isdesired that the shaft L shall not make an entire revolution every timethe pin Q is raised, the pin S can be placed in an aperture, a,diametrically opposite the pin Q.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination, with the brake-shaft J,

of the disk N, provided with apertures a, the

vertically-movable loose collar 0, having a downwardly-projecting pin,Q, which is beveled at the end, and of the lever T, pivoted on the outerend of the arm L, in which the upper end of the shaft J is journaled,substantially as herein shown and described, and for the purpose setforth.

2. The combination, with the brake-shoes A and the bars B, of thehorizontal shaft E, journaled on one brake-bar, B, the arms F and D,projecting upwardly and rearwardly and downwardly and rearwardly,respectively, from the said shaft E, the rod 0, connecting the arm Dwith the opposite bar, B, and the rod G, connecting the arm F with thebrake-shaft,

Witnesses:

LUKE E. J ENKIN, EDWARD S. PHILLIPs.

